It was originally supposed that Mechtorians could not be harmed by the effects of poison due to their mechanical nature. However Arbuthnot accidentally discovered the unusual side effects from application of small amounts of toxic venom distilled from the spittle of his pet, an indigenous beast he called Rupture. He discovered that his unsuspecting fellow robots could indeed be paralysed for prolonged periods of time. So like the state of death was this paralysis that he was concerned his victims would be buried or dismantled in error. He continues to research and stockpile poisons for his own entertainment. One day he may even use them…